Planing-machine.



P s. A T T R A w v a W PLANING MACHINE.

(Application Bled June 8, 1901.)

(No Model.)

3 Sheets-Sheet I.

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Patentedk Feb. I8, |902.

- W. 0. VIVARTTAS.

PLANING MACHINE. (Application mea .mm s, 1901.)

3 Sheets-Sheet 2.

mh Model.)

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Patented Feb. I8, |902. w.l o. vlvAnTTAs. PLANING MACHINE.

(Application med .nm s, 1901.)

3 Sheets- Sheetv 3.

Y No. 693,576.

(Nn Model.)

4o sisting of a series of rolls or roll-shells. Each UNTTED STATES PATENT CEFICE.

IVILLIAH O. VIVARTTAS, OF W'EEHAVKEN, NEW JERSEY, ASSIGNOR TO H. B. SMITH MACHINE COMPANY, OF SMITHVILLE, NEYV JERSEY, A COR- PORATION OF NEW JERSEY.

PLANINGIVIACHINE.

SPECIFICATON forming part of 4Letters Patent No. 693,576, dated February 18, 1902.

Application led June 8, 1901.

T all whom t may concern:

Be it known th at I, WILLIAM OTNARTTAS, a citizen of the United States, residing at Veehawken, county of Hudson, and State `of New Jersey, have invented a new and useful Improvementin Planing-Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, which form a part of this :o specification.

My invention relates to planers or su rfacers of that type adapted to work upon different thicknesses of stock at the same time.

The object of the invention is to devise x 5 new means whereby the capacity of working upon different thicknesses of stock may be attained with more success than heretofore.

The invention also has for its object to enable widely different thicknesses of stock to zo be worked upon at dilferent times without any preliminary adjustment of the machine.

The invention consists of an arrangement of yielding and weighted sectional rolls and sectional chip-breakers having the characteristics hereinafter described, andparticularly defined in the claims.

In the drawings, Figure l is a plan View of a machine embodying my invention. Fig. 2 is a front View of the same. Fig. 3 is a side 3o view 0f the same. Fig. 4 is a section on the line 4 4 of Fig. 1. Fig. 5 is a partial section on the line 5 of Fig. 4. Fig. 6 is a section similar to Fig. 4, showing a modification. Fig. 7 is a partial section on the line 7 7 of Fig. 6.

A is a spur-driver on the shaft c and eX- tenlds through and drives the sectional feedrol B B, the., represent the sectional roll, conroll-shell consists of an annular ring having a series of inward projections corresponding in number to the teeth of the spur-driver, there being a substantial clearance between the spur-driver and the sectional-roll shells to permit the latter to be raised and still be driven by the former.

B is a feed-roll beneath the sectional roll. Between the roll-shells B and roll B/ the stock 5o is fed.

Serial No. 63,699. (No model.)

C C, dac., are weighted rolls corresponding in number to and resting respectively on rollshells B B, dic.

D D, duc., are weighted arms fulcrumed on shaft CZ and saddling, respectively, rolls C C, thc. This saddling is effected by providing each Weighted arm D with a fork or saddle, which engages the reduced central part of its corresponding roll C.

E E, the., are equalizing rock-bars having 6o a common bearing c on shaft e, on which they are 'fulcrumed These rock-bars also have bearings on the shaft d, between the weighted levers D D, dto. The e'qualizing rock-bars F F at opposite sides of the machine are similarly fulcrumed on shaft e and have similar bearings on shaft d.

H is a yoke-cover over the sectional roll. The yoke-cover is integral with the frame of ythe machine and contains bearings for shaft c. 7o

Gr G are links connecting rock-bars F F with the journal-boxes ct' of shaft a. The rock-bars E E, the., and F F thus support the shaft d and the Weighted arms D D, &c.

J is a slide-bar having arms L fulcrumed on shaft Z.

K K, the., arenosepieces having grooves adapted to slide verticallyover projections on slide-bar J to the same extent that rolls B are adapted to move up and down relatively 8o to spur-driver A. The nosepieces correspond in number to the roll-shellsV B. The parts K L J constitute the chip-breaker.

P represents springs between slide-bar J and nosepieces K.

M is the rotating cutter.

N is the bed over which the stock moves.

Normally the lowest part of the periphery of the sectional roll is on the same horizontal plane as the lower end of the sectional chip# 9c breaker.

The operation is as follows: The stock that is fed forward is always of a thickness exceeding the distance between roll C and bed N and sectional roll B when the latter is in 95 its normal position. Each piece of lumber will raise the roll-shell B with which it contacts a distance corresponding to the said excess of thickness. If the extreme clearance between each roll-shell and the spur-driver is 10o assumed to be three-eighths of an inch and the said excess of thickness of any piece of lumber is less than three-eighths of an inch, the operation is as follows: The roll shell or shells engaged by said piece are raised, which raises the corresponding roller O,which raises the corresponding Weighted arm D on its fulcrum d. If the said excess of thickness of any piece of lumber is more than three-eighths of an inch, the operation is as follows: The rollshell engaged by such piece is raised, raising the corresponding roller C and weighted arm D until the spur-driver bottoms on the roll-shell. Then the spur-driver is raised bodily, which, through links G G, raises the rock-bars F F and all the rock-bars E on their fulcrum e. If the extreme distance that the nosepieces K can slide upon slide-bar J is assumed to be three-eighths of an inch and the said excess of thickness of any piece of lumber is less than three-eighths of an inch, the operation of the chip-breaker is as follows: The

lnose piece or pieces engaged by said piece of lumber are raised against the action of their spring P on the slide-bar J a distance equal to the distance that the corresponding roll-shellB has been raised. The nosepiece holds the stock absolutely to the bed while being Worked. If the said excess of thickness of any piece of lumber is more th-an three-eighths of an inch, the operation is as follows: The nosepiece engaged by such piece of lumber is raised against the action of its spring P until the lower end of slide-bar J is engaged by the bot tom of the groove in the nosepiece. Then the slide-bar J and both arms L are raised on their fiilcium Z.V Thusthe machine is capable of feeding and planing or surfacing at dierent times stock of widel y-varyin g thicknesses and is capable of feeding and planing or surfacing stock of dilferent thicknesses simultaneously, provided the variation between the thickest and thinnest piece is not over the assumed three-eighths of an inch.

In Figs. 6 and 7 I have shown a modification in which instead of the weighted arm D I employ a spring Q. The rock-bars E E, &c., are eliminated, and in place of the rockbars F F are employed the rock-bars F F', carrying at their free ends a transversely-extending bar d. This bar is embraced by the yoke R, having forked or bifurcated ends embracing the reduced portion of the roller C.

The spring is confined between the yoke R and the transverse bar d, and the yoke is capable ofsliding up upon the transverse bar cl against the action of spring Q, when the corresponding section of the sectional roll B is forced upwardly beyond its normal position.

The spur-driver A and cutterhead M are driven from any suitable source of power.

7 I have not illustrated such driving means, as

the same constitutes no part of my invention. Any other form of driving-gear may be substituted for the spur-driver A. When I use the term driving-gear, I refer to any suitable driving means for the sectional roll.

I do not limit myself to details of construction except where particularly claimed, as these may be varied without departing from the essential invention.

Having now fully described my invention, what I claim,and desire to protect by Letters Patent, isl l. In a woodworking-machine, in combination, a driving-gear, a feed-roll composed of independent sections in driving engagement with the driving-gear and capable of independent limited vertical movement without affecting said driving connection and adapted to engage and lift said driving-gear when its vertical movement exceeds said limit, a tension device engaging each feed-roll section and normally holding itin its lowest po sition, and a vertically-movable support upholding said tension device and driving-gear, substantially as described.

2.V In a Woodworking-machine, in combination, a driving-gear, a feed-roll composed of independent sections in driving engagement With the drivinggear and capable of limited independent vertical movement without affecting said driving connection and adapted to engage and lift said driving-gear when its vertical movement exceeds said limit, supporting-bars pivoted on the machine-frame, a connection between said driving-gear and said bars whereby the latter upholds the former, and pivoted tension-arms sustained by said supporting-bars and acting upon said feed-roll sections to normally hold them in their lowest positions.

3. In a woodworking-machine, in combination, a driving-gear, a feed-roll composed of independent sections in driving engagement with the driving-gear and capable of limited independent vertical movement without affecting said driving connection and adapted to engage and lift said driving-gear when its vertical movement exceeds said limit, supporting-bars pivoted on the machine-frame, a connection between said driving-gear and said bars whereby the lattery upholds the former, pivoted tension-arms sustained by' .the supporting-bars, and rollers engaged by said tension-arms, said rollers engaging the feed-roll sections, substantially as described.

4. In a woodworking-machine, in combination, a driving-gear, a feed-roll composed of independent sections in driving engagement with the driving-gear and capable of limited independent vertical movement without affecting said driving connection and adapted to engage and lift said driving-gear when its vertical movement exceeds said limit, supporting-bars pivoted on the machine-frame, a connection between said driving-gear and said bars whereby the latter upholds the former, a shaft connecting the free ends of said supporting-bars, tension -arms (corresponding in number to the feed-roll sections) pivoted on said shaft, rollers (corresponding in number to the tension-arms) engaged respectively by said tension-arms, said rollers engaging the feed-roll'sections respectively, and @finalizing-bars pivoted on the same axis as the supporting-bars and having bearings on said shaft, said equalizing-bars extending in the same general direction as the tensionarms and arranged alternately with respect thereto, substantially as described.

5. In a Woodworking-machine, in combination, a driving-gear, a feed-roll composed of independent sections in driving engagement with the driving-gear and capable of limited independent vertical movement Without affecting said driving connection, a roller engaging each roll-section, a tension-arm pivoted at one end and saddling each roller, pivoted supporting-bars sustained on the machine-frame and sustaining at their free ends the said tension-arms, and a connection between the supporting-bars and the drivinggear, whereby when the vertical Imovement of any of the roll-secions exceeds said limit, it Will raise said supporting-bars on their fulcrums and consequently raise the drivinggear, substantially as described.

6. In a Woodworking-machine, in combination, the spur-driver A, shaft ct, roll-shells B, rollers (l, weighted arms D, rock-bars F, rockbars E, journal-boxes a on shaft a, and links G, the roll-shells being driven by the spurdriver, the rollers resting respectively upon the top of the roll-shells, the tension-arms being pi voted and sustained by the rock-bars, and saddling and resting upon the rollers, the rockbars being pivoted on the machineframe, and the links connecting the rockbars F and the journal-boxes, substantially as described.

7. In a Woodworking-machine, in combination, a driving-shaft, a spur-driver thereon, a feed-.roll composed of independent sections, each roll-section surrounding the spur-driver and having an annular shell provided With inward projections adapted to be engaged by the teeth of the spur-driver, there being a substantial clearance between the spur-driver and the roll-shells, whereby each roll-section is in driving engagement with the spur-driver and capable of limited independent vertical movement, and a vertically-movable support upholding the spur-driver, whereby When the movement of any roll-section exceeds said limit the spur-driver is lifted bodily.

In testimony of which invention I have hereunto set my hand, at Philadelphia, on this 21st day of May, 1901.

VILLIAM O. VIVARTTAS.

Witnesses:

M. F. ELLIS, M. M. HAMILTON. 

